Roof drain



Nov. 6, 1928. 1,690,630

W. S. FLEMING ROOF DRAI N Filed Feb. 10, 1926 2 Sheets-Sheet l 2 Sheets-Sheet )Illlllllll bum/view W. S. Flamz'h ,4/lorney,

Nov. 6, 1928.

w. s. FLEMING ROOF DRAIN Filed Feb. 10, 1926 Patented Nov. 6, 1928.

PATENT' OFFICE.

WELLS S FLEMING, OF POBfilllIiA'll'ID, OREGON.

BOOZE DBAIN.

Application filed February 10, 1926. Serial No. 87,281.

This invention relates to improvements in drain-fittings for roofs, gutters, and the llke.

The object of my invention is to provide a fixture for installation on roofs or in any suitable location, particularly when the fitting is not subject to frequent ins ection,.

simple in construction, and compose of but few parts to conduct liquids into a drain-' pipe, and that will be substantially selfclearing to avoid obstructions and admitof a free opening at all times to the drain-pipe from the area to be drained equal in amount to the capacity of the drain-pipe.

Another ob ect of the invention is the provision of a drain-fitting of the type described wherein a cover-plate is provided havlng an annular drain-depression formed below the level of'the area drained and with inclined or vertical walls upon each side of said depression apertured to admit of a wide margin of capacity over that of the dram pipe, and wherein an axially disposed'apertured dome is formed integral in said cover-plate extending above the said area-level whereby a rigid structure is provided and danger of dislocation and consequent risk of stoppage of the pipe-is avoided.

A further ob ect of my invention is to provide a drain fitting ada ted to have the water proofing material of t e roof clamped firmly and permanently between its coverplate and body member, thereby to provide a water-tight seal, and tO PIOVIdG supplemental draining apertures disposed about the base of the dome in the web 'circumferentlally surrounding the same. a p

i A still further object of the invention 18 the provision of a drain-fitting of the type outlined having a dome-hke central portion. wherein a plurality of terminals are rovided to surmount said dome to better a apt it to various classes of work and having means to interchangeably attach and use either of said terminals as occasion warrants. Other objects and advantages residing 1n my invention. and objects relating to details of construction and arrangement of parts will be readily apparent in the course'ofthedetailed description to follow.

The accompanying diagrams illustrate the various forms of the invention thought to be required to indicate the vention in which:

Figure 1 is a view in vertical section of a roof drain-fitting of my invention mounted in operative position.

Fig. 2 is a plan view of the same. i Fig. 3 is a view similar to Fig. 1 illustrat- .ing. a slightly modified form of the drainfitting applied to a floor or wall.

Fig. 4: is a planview of a drain-fitting similar to that shown in Fig. 2 except that it is of ovate form suitable for use in roof gutters or valley-drains.

Fig. 5 is a detached View of the coverplate element of the invention shown in side elevation partly broken away. 7

Fig. 6 is aview similar to Fig. 5 showing the several parts of the invention unassembled and having a variant style of dome to that shown in Fig. 5.

Referring to said views wherein similar characters of reference indlcate like parts in the several views, the reference numeral 1 designates a downwardly sloping conical body of my improved roof drain having a tubular, integral collar 2 at its lower end rovided with an axial screw-threaded bore lnto which the drain-pipe 3 may be threaded. The upper portion of said body extends in an annular flange 5 at a relatively slight downward angle to provide drainage toward the conical chamber 6 of said body. The

upper face of said flange is recessed, as at 7 to provide a wall 8 at its marginal edge. Threaded bolt-recesses 10 are formed in said flange at spaced intervals medially about said recess.

, A cover-plate, see Fig. 5, is formed with an annular port-ion 11 to overlie the flange 5 of the body and with 'the underside shaped to fitwlthin the recess 7 with a sheet of waterproof material, as 12, therebetwee'n. Boltholes are provided in said annular portion in register with the reccesses 10 whereby bolts 13 may be employed to draw said cover-plate into rigid watertight connection with said flange with the material 12 interposed therein.

Centrally of the annular portion of the cover-plate an integral inwardl inclined skirt 15 is provided that is spaced from the principle of my inv inclined side walls of said body and extends relatively deeply within the chamber 6. Said skirt is apertured, as at 16, about its perimeter, said apertures being of any suitable form affording an outlet through the said skirt and from the depression formed thereby into the chamber 6 of the body portion.

Axially of the cover-plate and integrally connected to the lower edge of the skirt 15 is a circular dome 17 with vertical peripheral walls 18 perforated by slots 20 extending above the cover-plate portion 11 and surmounted by a perforated extremity 21 which may be of hemispherical configuration as seen in Fig. 1 or as in a plane, as shown in Fig. 3. Thus the dome 17 extends for about one-half of its height within a depression 22 formed by the depressed skirt 15 and its other half-portion extends above the level of the annular portion 11.

An annular rib 23 is formed in said portion 11 adjacent the inner edge thereof to serve as a stop or dam to prevent any plastic material used as a roofing material, as tar, from flowing into the depression 22. When constructed and installed in the mam ner substantially as illustrated in Fig. 1 my roof drain will be seen to afford many advantages. It is. especially important in this type of drain that it be practically immune from danger of clog ing or the drainage thereinto be stopped rom any cause as they are usually not inspected with frequency, and lie in situations not coincident to observation, while damage to the building may be of serious effect should they become stopped. With the drain located upon the roof or other selected location, with proper regard to drainage thereinto from the roof, it will be practically impossible for such accidents to occur. In the present instance I have provided a drain having a relatively dee annular depression 22 formed by the s en skirt 15 and the dome 17 in which all drainage water may flow affording a species of sump for the collection of the drainage water. The provision of the apertures in the opposite side wall of said depression, and inclined in the case of those in the skirt 15 and vertical with respect to those in the dome 17, and which are collectively of area twice as reat as the cross-section area of the drain-pipe, renders the danger of the access of the water to the drain-pipe being stopped as practically negligible.

Similarly a safeguard against accidental displacement or the several parts of my roof drain is provided in that the dome, 17, is formed integral with the cover-plate and the said cover-plate is bolted securel to the body member with the water-proo material firmly secured between, forming a permanent wzuter-prooi seal so that frequent inspections will not be necessary.

The provision of the heightened dome 17,

extending above the level of the area drained and of the other parts of the drain appa ratus provides an added assurance that all surface water will be carried off before damage to property ensues. The water-proofing material 12, which may be roofing-felt, sheet tin-plate, or the like, is connected between the flange 5 and the cover-plate in watertight condition so that no leakage about the.

drain may occur.

In Fig. 4 I have shown drain-fittin simi-.

ing upwardly slightly above the upper level of the cover-plate when rovided with interior screw-threads 25. fhe upper portion of said dome, 26, see Fig. 5, is attachable .thereto by corresponding external screwthreads 27. A variant form of said upper dome-portion is illustrated in'Fig. 6 at 28 havin a tubular art 30 in which the screwthrea s 27 are ormed and an outwardly flaring upper extremity 31 in whicha plane grille-plate 32 is secured. The purpose of such interchangeable dome-forms will be readily apparent in affording two separate and distinctly difi'erent types of outlet, the latter of which will be more fully described.

In Fig. 3 I have illustrated a form of my invention substantially similar to that shown in Fig. 6 excepting that the upper portion of the dome is not detachable. These types of drain-fittings are adapted for use as floor drains in horizontal surfaces or wall drains to be utilized in swimming-pools and the like. Exemplifying its use as a floor drain in Fi 3 I show the drain structure set within a oor-frame 32 and connected to a waterproof membrane 33 in the manner set forth. In the depression 22 I place a filler 35 of fibrous material extending upwardly to cover the slots 20. Then a layer of plastic cement material 36 may be laid over the floor in which the tiling 37 may be set substantially flush with the grille-plate 32.

Therefore, by this construction and arrangement of the parts of my roof drain, I have provided a fixture which will not become clogged for, all danger of the coverplate being lifted off, and forgotten to be replaced-thus leavin the drain pipe exposed to become filled wit refuse-is avoided, and a permanent water-tight seal is assured at all times between the water-proof material of the roof and the drain fixture.

From the foregoing description taken in connection with the accompanying drawings the advantages of the construction and operation of myroof drain" will. be readil apparent, but, while I-have described the Karinciple of operation of the invention, together with the devices which I now consider to be the best embodiment thereof, it will be understood that the structure shown is merely illustrative and that such changes may be made as are within the scope of the follow-. in claims.

aving described my invention, what I claim, is

1. In a drain of the class described, an inwardly sloping body affording an inverted conical chamber and having means to connect a drain-pipe thereto, said body including an integral, laterally arranged flange having drainage into said chamber, a coverplate arranged to be secured in superposed relation to said body-flange with a sheet of water-proofing material therebetween, an inverted conical skirt extending integrally from said cover-plate within said body chamber perforated to allow drainage therethrough, and a slotted dome centrally sup ported upon said skirt and extending above the level of said cover-plate afi'ording an annular depression between the skirt and said dome.

2. In a drain of the class described, a.body having a drainage chamber therein and havin meansto connect a drain-pipe thereto, said body including an integral, laterally arranged flange having drainage into said chamber, a cover-plate arranged to be secured in superposed relation to said bodyflange with a sheet of water-proofing material thercbetween, an inverted conical skirt extending integrally from said cover-plate within said body chamber perforated to allow drainage therethrough, and a slotted dome supported centrally of said skirt'and extending above the level of said cover-plate afi'ording an annular depression between the skirt and said dome.

3. In a drain of. the class described, a body having a drainage chamber therein and having means to connect a drain-pipe thereto, said body including an integral, laterally arranged flange having drainage into said chamber, a cover-plate arranged to be secured in superposed relation to said bodyflange with a sheet of water-proofing material therebetween, said cover plate having a skirt extending integrally from said coverplate within said bodychamber perforated to allow drainage therethrough, and a slotted dome connected centrally of said skirt and extending above the level of said cover-plate affording an annular depression between the skirt and said dome.

4. In a drain of the class described, a body having an annular flange extending in genslotsof said dome affording communication between said depression and said bodychamber.

5. In a drain of-the class described, a body having an inwardly sloping annular flange extending in lateral directions and with a central chamber therebelow connecting with a drain-pipe, a cover-plate adapted to be bolted to said body-flange to secure therebetween a sheet of water-proofing material in watertight relation. said cover-plate extending above said body-chamber with 'per-' forations therein communicatin with said chamber, and a slotted dome rigidly mounted axially of said cover-plate.

v6. A drain of the class described, consisting in a chambered body to which a drainpipe is-connected,.said body having a laterally directed flangeinwardly sloping affording drainage into said body-chamber, a cover-plate adapted to overlie said flange and rigidly connected thereto to secure a sheet of waterproofing material therebetween, said cover-plate extending above said body-chamber and formed with perforations to admit of drainage through said coverplate into the chamber, and. a slotted dome rilgidly supported centrally upon said coverp ate.

7, In a roof drain and the like, a body having an annular, laterally extending inwardly sloping flange and provided with a central chamber below the flange connected to a drain-pipe, and a cover-plate firmly sea cured on said flange, said cover-plate having I a base with a web surrounding same, and

formed with a slotted centrally arranged dome extending above but being of lesser diameter than said body chamber, said cover-plate provided with supplemental drain slots arranged circumferentially about said dome in the web surrounding the base thereof and communicating with said chamber, in combination witha sheet of water proofing material having a drain hole cut therein, the edge 'of said material around said drain hole being firmly and permanently clamped in water-tight relation between the rim of said cover-plate and said flange.

WELLS S. FLEMING. 

